单项选择题

A．Animals live in more natural environments.
B．Trees and grass grow in the cages.
C．A deep ditch filled with water surrounds the area where animals live.
D．All of the above.
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单项选择题
A．A good presentation needs a lot of preparation.B．The presentation was very good.C．He can always turn to her for help.D．He should get some sleep.
A．A good presentation needs a lot of preparation.
B．The presentation was very good.
C．He can always turn to her for help.
D．He should get some sleep.
单项选择题
A．Because the zoo keeper did not take good care of them.B．Because the animals were not fed well.C．Because the environment was anything but natural.D．Because the cages were too dirty.
A．Because the zoo keeper did not take good care of them.
B．Because the animals were not fed well.
C．Because the environment was anything but natural.
D．Because the cages were too dirty.
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